Look up what drivers licensing is like in Japan, for example. Much tougher, in the same way AP Calculus is tougher than Remedial Algebra. Couldn't even pass on an automatic transmission until a few years ago.
Or hell, just compare one US state to another. In Arkansas, I got a driver's license and didn't ever even have to prove I could parallel park. In northeastern states, that would be wild.
Or christ.... even in the US, within a state, compare the requirements for a CDL to a standard class D license. It's, rightly, much tougher. Require every driver to pass to a CDL standard and accidents would go down dramatically (I'm not proposing this exact intervention, just an example).
Require drivers to demonstrate greater skill when taking the examinations, and they will have to have greater skill when driving. Simple. Works everywhere but here somehow.
Sarcasm is very warranted because you failed to do even cursory research and instead assumed that the US is magical, special, unique, and nowhere else could possibly be different.